CMata_Intel I need to support docker, and I would prefer to enable 64-bit support so all standard docker images should work, while compiling 32-bit docker binaries (which I did) requires 32-bit docker containers off course.

I added LXC support and a few additional IPTABLES chains in the kernel configration, nothing else.

often helpful on issues with bitbake is to run the "devshell" task (i.e. in your case something like "bitbake -c devshell edison-linux"). This gives you a shell with all the environment set for the toolchain. There you may experiment directly in a shell (e.g. directly run make)